Bambulab A1 - Stock Ludicrous mode vs custom profile speed test
You won't believe the difference
Stock profile has ludicrous mode enabled and this is pretty much how most users will use their A1 printers- however if you are willing to play around with the profiles you might just be surprised by how good this thing is
File available here if you want to give it a try
www.thingivers...
Rocket2.stl is the version in the video
0.4mm nozzle
Generic pla
0.2mm layer heights
Before changing anything slice a model so you can get an idea of print time prior to making any changes - you will slice the same model at the end and compare times
Settings I changed below
In the slicer select your printer and nozzle setup (in my case A1 with 0.4mm nozzle)
once its selected you can click on the edit button at the end of it in the slicer to modify the settings
The edit page shows 4 tabs across the top
Basic information
Machine G-Code
Motion Ability
Extruder
We will only be concerned with Motion ability and extruder
Select motion ability and scroll down to jerk limitation
change
Max Jerk X to 6
Max Jerk Y to 20
Max Jerk Z to 20
Max Jerk E to 6
Now select Extruder tab
Z hop when retracting change to 0
Z hop upper boundary change to 0
Z hop type change to slope (may or may not make a difference)
Retraction speed change from 30 to 40
Detraction speed change from 30 to 40
Z hop upper boundary change to 0
Save that - I named it speed setting in slicer for handiness
Now back to Bambu slicer main screen and select your filament
I chose Generic PLA @BBL A1
at the end of the filament there's an edit button ( its between filaments 1 and 2 if using multiple filaments or ams)
In here we have 4 tabs
Filament
Cooling
Setting Overrides
Advanced
We will be adjusting
Filament and Cooling
Select Filament
Change Flow ratio from .98 to 1.1 or 1.2 (you may want to adjust this after you do your initial print)
Scroll to bottom of page and click on Max volumetric speed and change this from 12 to between 48 and 52 - (I used 50 but you want to play around with this depending on results)
In here you may want to add some extra temperature for the nozzle due to the increased speeds currently 220 on first layer and 220 on other layers (I suggest bumping this to 225 on both)
Now move to the cooling tab
Under Part cooling fan - change Fan speed to 100%
Untick - Slow printing down for better layer cooling
Cooling overhang threshold - change from 50% to 0%
That should be it close out of this or save it if you plan to use it again
With your modified printer chosen and modified filament selected slice the model you previously sliced and fingers crossed you should see a considerable time saving
If you are unhappy with the changes you can revert to standard by hitting the little orange undo button in front of any items you changed